#40B4D2#40B4D2

#40B4D2 is a light, moderate cyan. Relative luminance 0.384; OKLCH L 71.8% C 0.110 H 218.6°. Best body text is #000000 at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#40B4D2
RGB	rgb(64, 180, 210)
HSL	hsl(192, 62%, 54%)
HSV	hsv(192, 70%, 82%)
CMYK	cmyk(69.5%, 14.3%, 0%, 17.6%)
CIE-LAB	lab(68.30, -22.70, -24.58)
CIE-LCH	lch(68.30, 33.46, 227.29°)
OKLab	oklab(71.76% -0.086 -0.0686)
OKLCH	oklch(71.76% 0.11 218.6)
XYZ	xyz(30.0636, 38.3822, 66.7843)
Luminance	0.3839 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B4D2 #D25E40

analogous

#40D2A7 #40B4D2 #406BD2

triadic

#40B4D2 #D240B4 #B4D240

tetradic

#40B4D2 #A740D2 #D25E40 #6BD240

square

#40B4D2 #A740D2 #D25E40 #6BD240

split-complementary

#40B4D2 #D2406B #D2A740

monochromatic

#1D677B #2991AC #40B4D2 #72C7DE #A3DBE9

Accessibility & contrast

On white

2.42

#40B4D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.68

#40B4D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B4D2

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B4D2	#FFFFFF	#000000	##000000
##40B4D2	1.00	2.42	8.68	8.68
#FFFFFF	2.42	1.00	21.00	21.00
#000000	8.68	21.00	1.00	1.00
##000000	8.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1AFD4

Deuteranopia (green-blind)

#8DA0D2

Tritanopia (blue-blind)

#00BEBD

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #40b4d2;
/* rgb */ color: rgb(64, 180, 210);
/* oklch */ color: oklch(71.8% 0.110 218.6);

Tailwind

colors: {
  custom: {
    50: '#87cadf',
    500: '#40b4d2',
    950: '#000000',
  },
}

SCSS

$custom: #40b4d2;
$custom-light: #87cadf;
$custom-dark: #000000;

JSON

{
  "hex": "#40b4d2",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 210
  },
  "hsl": {
    "h": 192.329,
    "s": 61.864,
    "l": 53.725
  },
  "oklch": {
    "l": 0.71763,
    "c": 0.10999,
    "h": 218.6
  },
  "luminance": 0.38386
}

Semantic roles & 50–950 ramp

primary

#40B4D2

secondary

#D6A598

accent

#6443E5

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B4D2

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →